Split module name

[pkuczynski]

Module name currently includes things not related to name like gender and job*.

Proposal:

• move gender to a person module. Why: this module could be later on extended with things like height, eyes, etc.

  faker.person.sex()
  faker.person.gender()
  faker.person.height() // idea for the future
  faker.person.eyes() // idea for the future

• move job* to a dedicated module:

  faker.job.area()
  faker.job.descriptor()
  faker.job.title()
  faker.job.type()

• simplify name module methods (optional)

  faker.name.first() // instead of faker.name.firstName()
  faker.name.last() // instead of faker.name.lastName()
  faker.name.full() // instead of faker.name.fullName()
  faker.name.prefix()
  faker.name.suffix()

[ST-DDT]

I would move the firstName and lastName method to the person module as well effectively renaming the name module to person.
As for the job method, we could move them to company or as a standalone module.

[pkuczynski]

• I like them to be shorter faker.name.first() vs faker.name.firstName()
• faker.person.prefix does not really make sense (but we could rename it to faker.person.title() maybe?)
• faker.person.suffix does not really make sense (but we could rename it to faker.person.nameSuffix(), although it looks really long so I would prefer faker.name.suffix())

[ST-DDT]

first and last sound like array accessors to get the first or last element in an array.
I have to check the prefix and suffix locale data before I can decide on them. These might only be helpers functions for the old fullName/findName method and as such might not need public methods at all.